dual side torque sensor transducer standard buttom bracket electric scooter motor assisted bicycle intelligent bike MTB diy part this is the axial torque measuring device customer please choose right model according to your bike axis, bellow is T4, the vedio is how to install t4 , latest version: BB68, Middle wiring, size 143mm price include a free claw, donot inclide gears and crank, if need please contact sales person, need little extra cost, THE DISTANCE of crank, front hole to down hole distance 170mm can choose it 4 or 5 claw spider. 5 claw BCD 130MM. 4 CLAW BCD 104MM install way, customer who need install video please contact salesperson. parameter for latest version torque(which has middle wire ) from 1st november 2017 : power supply 10-60vdc (old model before 1st november 2017 is 12-24v) for this point, please check your bike system then leave message for which voltage you need, or default setting we will send it whatever in stock,. new model specification Specifications: Supplyvoltage: 10-60VDC Workingcurrent: ≤40mA Pedalpulse: 48/T Resolution: 0.25Kg·F Basevoltage: 1.5V±0.03 Non-linearity: ±0.04V Voltage scale: 0.25V/10Kg·F Max.outputvoltage: 4V Sleepcurrent: ≤8mA Sleeptime: 10min Ratedload: 60Kg·F Maximumload: 200Kg·F Signalupdaterate:100Hz Outputimpedance: 100 Ω Workingtemperature:-20~+60℃ IPlevel： IP65 bellow is old model specification working current : le35mA (12V) sleeping current: <=10mA (12V) Sleeping time : 10min rated loading :60kg . max loading>200kg.f basic voltage :1.5v max output voltage : 4.0v pedal power and output power ratio: 0.25v/10kg.f linear error:<5%, T2(10%) zero point temperature drift: plusmn0.04V resolution ratio: 0.25Kg.f signal transit frequency : 100Hz output impedance :100Omega pedal frequency signal: 48pieces /turn working temperature : -20 degree -60degree NET WEIGHT :410G bellow is t2 t2 INSTALL TIPS ; there is an install mark at right axle centre , when right crank stay level and forward, the mark should be on right above, the square hole of crank has two kinds: 45 or 90 degree, if no special requirement we produce the axis 45degree. T2 HAS 3 LENGTH please choose your size or we will send whatever in stock. C MEANS THE DISTANCE FROM CRANK(THAT SIDE WITH GEAR) TO BUTTOM bracket customer please choose the length of torque sensor according to the length of your bike axle Quick Details Advantage 1.Faster start and quicker response,double-sided torque output,30ms response speed,<12deg crank responseof both pedal dirction 2.No more temperature drift issue with high reliability in low temperature 3.Compatible with standard bottom bracket,requiring no modification the frame design 4.Easy installation and flexible length options 5.Customized size and compatible with Mid-drive motor also has 115mm which is updated if need install video for t2 115mm please leave contact way wires of torque sensor when install please read the install instruction carefully. and we have done aging test and match and adjust the shell/shaft sleeve with the spindle/axis before delivery, so it is strictly prohibited to use shell with your own spindle, vice versa. even you buy two together from us, please donot switch parts of sensor 1 with sensor 2. if accuracy is influenced, you can send back to repair. but please pay freight to china by yourself. THE DIFFERENCE BETWEEN T2 AND T6 T6 IS updated version of T2 on outlooking and installation. axle/shaft sleeve OF T6 IS aluminum alloy axle sleeve of T2 is MADE OF PVC MATERIAL. WHEN INSTALL T6 you need take off snap ring /clamp spring, this point is same with T4. BELLOW IS PICTURE OF T6. now lated news T2 has 115mm version -it has been the shortesd since you need space for crank and left bowl , the right part is shorter 5mm than the 122.5mm model. so common single speed bike can install it. tthe testing way for torque sensor bottom bracket/axis is different with common bike axis. common bike axis is 52mm . if need please leave message in advance, may need longer deliver time. thanks warrenty: all the serials T2-T6, warrenty is one year, during this time you can send back for repair, but pay freight by yourself, we will send back and pay freight to your country. after 1 year, the program is updated and we have no parts to replace. thanks BELLOW is the link of controller and display especially designed for this torque sensor, /item/32954640209.html? another tft display to match with it /item/33057478259.html? price is for sample only, for more information or quantity order or user instruction please leave message. 
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